"Cov khoom siv khawv koob" graphene

"Cov khoom siv khawv koob" graphene tuaj yeem siv rau kev tshawb pom sai thiab raug ntawm COVID-19
Raws li kev tshaj tawm xov xwm txawv teb chaws, cov kws tshawb fawb ntawm University of Illinois ntawm Chicago tau ua tiav siv graphene, ib qho ntawm cov ntaub ntawv muaj zog tshaj plaws thiab thinnest paub, txhawm rau kuaj tus kab mob sars-cov-2 hauv kev sim kuaj. Cov kev tshawb pom tej zaum yuav yog ib qho kev cuam tshuam hauv kev tshawb nrhiav COVID-19 thiab tuaj yeem siv los tiv thaiv COVID-19 thiab nws qhov txawv, cov kws tshawb fawb hais.
Hauv kev sim, cov kws tshawb fawb tau ua kegraphene ntawvnrog lub thickness ntawm tsuas yog 1/1000 nyiaj muas nrog cov tshuaj tiv thaiv uas tsim los rau lub hom phiaj tsis muaj npe nrov glycoproteins ntawm COVID-19. Tom qab ntawd lawv ntsuas cov qib atomic vibrations ntawm cov nplooj ntawv graphene thaum lawv raug rau ob qho tib si cowid zoo thiab cowid tsis zoo kuaj hauv cov qaub ncaug. Kev co ntawm cov tshuaj tiv thaiv kab mob sib txuas nrog graphene daim ntawv hloov pauv thaum kho nrog cov qauv zoo ntawm cowid-19, tab sis tsis hloov pauv thaum kho nrog cov qauv tsis zoo ntawm cowid-19 lossis lwm yam kab mob coronaviruses. Cov kev hloov vibration ntsuas nrog lub cuab yeej hu ua Raman spectrometer yog pom tseeb hauv tsib feeb. Lawv qhov kev tshawb pom tau luam tawm hauv ACS Nano thaum Lub Rau Hli 15, 2021.
"Lub koom haum xav tau txoj hauv kev zoo dua los txheeb xyuas covid thiab nws cov kev hloov pauv sai thiab raug, thiab qhov kev tshawb fawb no muaj peev xwm ua rau muaj kev hloov pauv tiag tiag. Qhov kev txhim kho sensor muaj qhov rhiab heev thiab kev xaiv rau covid, thiab tau nrawm thiab tus nqi qis Said Vikas berry, tus kws sau ntawv laus ntawm daim ntawv "Thecov khoom tshwj xeebntawm "cov khoom siv khawv koob" graphene ua rau nws muaj ntau yam, uas ua rau hom sensor ua tau.
Graphene yog ib yam khoom tshiab nrog SP2 hybrid txuas nrog carbon atoms nruj nreem ntim rau hauv ib txheej ob-dimensional honeycomb lattice qauv. Cov pa roj carbon atoms tau sib koom ua ke los ntawm cov khoom siv tshuaj lom neeg, thiab lawv cov elasticity thiab cov lus tsa suab tuaj yeem tsim kev vibration resonance, tseem hu ua phonon, uas tuaj yeem ntsuas tau zoo heev. Thaum lub molecule zoo li sars-cov-2 cuam tshuam nrog graphene, nws hloov cov resonance vibrations nyob rau hauv ib txoj kev tshwj xeeb thiab quantifiable. Cov kev siv peev xwm ntawm graphene atomic scale sensors - los ntawm kev tshawb pom covid rau ALS rau mob qog noj ntshav - txuas ntxiv nthuav dav, cov kws tshawb fawb hais.